Hide-working machine.



No. 7|3,|I8L Patented Nov. Il, |9042;

N'. LEIDGEN.

HIDE WURKING MACHINE.

(Application led Mar. 22. 1902.) (No Modeh) 3 Sheets-#Sheet l.,

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No. .713,n8.

Patented Nov. ll, |902. N. LEIDGEN. l HIDE womum; MACHINE.

(Apputionfiled Mar. 22, 1902.;

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Srarns NITE NICOLAUS LEIDGEN, OF MILWAUKEENVISOONSIN, ASSIGNOR OF ONE-HALF TO EDWARD I-I. MUNKWITZ, OF MILWAUKEE, WISCONSIN.

HlDE-VVORKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 713,118, dated November 1l, 1902.

Application iiled March 22, 1902. Serial No. 99,398. (No model.)

To all whom it may concern: cylinder provided with blades or scrapers.

Be it known that I, NICOLAUS LEIDGEN, av With such machines it has been found imcitizen of the UnitedStates, residing at Mil-4 possible or difficult to dothe Work effectively waukee, in the county of Milwaukee and State and completely without injuring the hides on 55 5 of Wisconsin, have invented certain new and account of variation or inequality in their useful Improvements in Hide-Working Mathickness, the actionof the cylinder blades chines, of which the following is a specificaor scrapers on the thicker parts of the hides tion, reference being had to the accompanying being too harsh and the action on the thinner drawings, forming a part thereof. parts being too light. One of the main ob- 6o 1o This invention relates particularly to majects of this'invention is to avoid the objecchines in which hides are subjected to the tions and difficulties above mentioned in the scraping, scouring,'or rubbing action of ro` operation of this class of machines and to tary cylinders provided with blades or scrapadmit of successfully performing by machiners for removing hair, dirt, and other matter ery certain operations on hides which have 65 and for preparing the hides for leather. Its heretofore had to be performed or completed main objects are to subject both the thinner by hand. and thicker parts of the hides to uniform and Referring` to the accompanying drawings, effective action or treatment, to avoid cutaisahorizontaldriving-shafthaving suitable ting, breaking, orinjuring the hides, and bearings in a frame h. It is provided at one 7o zo generally to improve the construction and end with a pulley c and at the other end with operation of machines of the class and for the a gear d and a sprocket-wheel e. purposes above mentioned. f is a tube or sleeve through which the shaft It consists in the construction and relative a passes. It is supported and adapted to turn arrangement of certain parts and in combinaat or near its ends in suitable bearings on the 75 tions of parts hereinafter particularly deframe I), and it is provided at itsends With scribed, and pointed out in the claims. segment bevel-gears g and at intermediate In the accompanying drawings like characpoints with cams 71,. It is also provided at or ters designate the same parts in the sever-al near its ends with forwardly-extending arms gures. i, in which acylinder j is journaled parallel 8o 3o Figure 1 is an end elevation of a machine with the shaft a.

embodying the invention, certain parts being A cylinder of the kind shown anddescribed broken away. Fig. 2 is a plan View of the in United States Letters Patent No. 663,097, machine, certain parts being broken away dated December 4l, 1900, haviugreversely-arand other parts being shown in horizontal ranged helical spreading-blades 7c and longi- 85 section. Fig. 3 is a front elevation and vertudinally -arranged scraping blades l, as

tical crosssection of the machine, certain shown in- Fig. 2, is preferably employed; but parts of which are omitted. Fig. l is a verany of the various f orms of cylinders suitable tical section on the line 4g, Fig, 1,-showing for this class of Work may be used. Upon a part' of the gearing for moving the hidethe outer ends of the cylinder-journals are 9o 4o working cylinder over the bolster; and Fig. xed sprocket-wheels m, which are connected 5 is a `detail view of the connections at the by link belts with similar sprocket-wheels fn. front of the machine for operating the on the shaft a. On the opposite side of the clutches which control the movement of the shaft c from the cylinder j a Ashaft o is suphide-working cylinder over the bolster.' ported vin bearings on the frame l ,`para'llel 9,5 In machines heretofore commonly used to with said shaft c. This shaft is provided, as do the class of work for which' the machine' shown in Figs.l 3 and 4, with Worms p, a'gear herein shown ,and described is designed the q, and a sprocket-Wheel r. The gear (1Which hides from which hair, dirt, or other matter meshes with the gear d, and the sprocketis to be removed are generally placed on a wheel r, which is connected by a link belt roo 5o solid or inflexible bolster and moved back with the sprocket-Wheel c, are loosely mountand forth therewith by the operator under a ed on said shaft o and adapted to be engaged therewith by suitable clutches s, which are connected by toggle-joints, as shown in Fig. 3, with a collar t, movable lengthwise on the shaft o between said clutches. When this collar is in its middle position, as shown in Figs. 2 and 3, both of the clutches will be unlocked and both the gear q and the sprocketwheel r will be free to turn on the shaft o. A worm-gear u and a bevel-pinion u, formed or secured together and mounted on a short shaft transverse to the shaft o, mesh, respectively, with and connect the worm p and the segment-gear g at each end of the machine.

w is a liexible bolster arranged to support a hide spread thereon in position to be operated upon by the cylinder and adapted to press all parts of the hide, whether thick or thin, with equal force against the blades or scrapers of said cylinder. This bolster may be made of one or more thicknesses of rubber helling or other suitable flexible or pliable material which will yield and -conform to inequalities or variations in the thickness of the hide and hold the thinner and thicker portions thereof against the blades or scrapers of the cylinder with a substantially uniform pressure. The bolster is preferably arranged, as shown in Fig. 1, in an inclined position, so as to hold a. hide in plain view of the operator and to carry off hair and dirt detached by the cylinder.` It is attached atits upper edge to a cross-bar on the upper front side of the frame b and at its lower edge to a parallel bar y, yieldingly connected with said frame, so as to allow the bolster,

i with ahide spread thereon, to conform to the cylinder as the latter is swung down and back over and against the hide and also to admit of increasing the tension on the bolster as the cylinder approaches its center. The bar y may be adjustably connected by eyebolts or links z with arms 1 on a rock-shaft 2, which is supported by bearings on the back of the frame parallel with the cylinder j. The shaft 2 is provided with arms 3, which have chain or other liexible connections with the sectorshaped ends of adjustably-weighted levers 4, as shown in Figs. 1 and 3. In place, however, of the bar y and its connections above described any other form of yielding support for stretching the bolster and applying the desired tension thereto may be employed.

5 is a clamping-bar for holding a hide to the cross-bar or to a cleat 6, attached thereto, over the bolster, as shown in Figs. 1 and 2. This clamping-bar is attached to the front ends of arms 7, which are pvoted on a crossshaft 8 and are provided at their rear ends in the paths of the cams 7L with rollers 9. The shaft 8 is supported at its ends parallel with and above the shaft d by standards rising from the sides of the frame b. The arms t' are provided with upwardly and inwardly extending arms 10, carrying at their upper ends rollers which are arranged, when the cylinder 7' is elevated and the cams 7L are turned backward out of contact with the rollers 9, to engage with the arms 7, raise the clamping-bar 5, and release the hide held thereby.

11 is a rock-shaft extending horizontally along one end of the machine and provided with an upwardly-extending forked arm 12, engaging a groove in the collar t. At its front end said shaft is provided with a downwardlyprojecting arm 13, which is linked to a lever 14 on the front of frame b, as shown in Figs. 1 and 5. To the upper end of the lever 14 is pivoted a horizontal bar 15, movable endwise in a bearing on said frame and provided within convenient reach of the operator with a handle. Between the arms 12 and 13 the shaft 1l is also provided with an arm 16, eX- tending horizontally toward the frame and connected by a link with the outer arm of a horizontally-disposed lever 17, the inner end of which extends into the path of arms or projections 18 and 19 on the adjacent cylinder-carrying arm i'.

2O is a sprinkler-pipe arranged above the upper end of the bolsterw and having avalvecontrolled water-supply connection.

The machine hereinbefore described operates as follows: The cylinder j being raised to the upper limit of its movement and the clamping-bar 5 being held by the arms 10 in an elevated position, as indicated by dotted lines on Fig. 1, a hide is spread on the bolster w with the hair or grain side up. The cylinderj beingr rotated in the direction indicated by the arrow by power applied to pulley c on the shaft d, the operator moves the bar 15 outward or to the right, thereby shifting the collar t inward and clutching the gear q on the shaft o. The cylinderj is thereupon swung downward against the upper end of the bolster by the revolution of the shaft o, which is turned by the gears d and q and imparts the required movement to the bevelgears g through the worms p, worm-gears u, and bevel-pinions c. As the rollers on the arms 10 clear the arms 7, leaving the clamping-bar resting upon the hide over the bal' w, the cams h engage with the rollers 9 and force said clamping-bar tightly down upon the hide over the cross-bar x.. As the cylinder passes over the hide the yielding flexible bolster upon which it is spread presses all parts of the hide with equal force against the blades of the cylinder, causing them to effectively scrape the hair and dirt or other matter from the thinner as well as the thicker portions of the hide and preventing too harsh action of the blades upon and consequent injury to the thicker portions. As the cylinder approaches the lower limit of its movement the arm 18 engages with the lever 17 and shifts the collar t into its middle position, thereby disengaging the clutch s, which locks the gear q on the shaft o, and arresting further downward movement of the cylinder. The operator now moves the bar 15 back to the left, thereby shifting the collar t outward and engaging the clutch s, which locks the sprocket-wheel r on the shaft o, which is now turned back- IOO IIO

. ster.

71ans `ward or in areverse direction by the sprocketwheels e and fr and the link belt connecting them, and through the connections hereinbefore described swings the arms z', with the cylinder j,rupward. In case any hair, dirt` or other matter still remains to be removed from the hide the operator by shifting the bar 15, as above explained, causes the cylinderj to swing down and back again over the hide, and this operation is repeated as many times as may be necessary to accomplish the desired result. By proper manipulation of the bar 15, which controls the reversing-gearing, the cylinder '7' may be caused to swing back and forth any number of times through longer or shorter arcs over any part of the length o f the bolster w, and the action of the cylinder may thus be coniined to the corresponding part of a hide spread upon said bol- As the hair, dirt, or other matter is loosened by the action of the cylinder-blades it is washed away over the lower end of the bolster by the water iiowing from the sprinkler-pipe 2O upon the upper end of the bolster. That portion of the hideA above the cylinder is thus kept clean, and being at all times in clear sight of the operator its condition may be noted and the operation of the cylinder thereon may be governed accordingly. When the work which the machine is intended to perform on the hide is completed, the cylinderjl is swung upward, and as it approaches the limit of its movement in that ldirection the arm or projection 19, engaging with the lever 17, shifts the collar t back to its middle position, thereby arresting the further upward movement of said cylinder. The rollers carried by .the arms 10, engaging with the arms "7, lift the clamping-bar 5 out of the way, thereby releasing the hide. The Wormsp and the worm-gears u, by means of which the cylinder is swung back and forth over the bolster w, serve to lock and holdv said cylinder in any position in which it may be arrested and obviate the necessity of providing a counterweight for holding said cylinder and its swinging frame, with the clamping device, in an elevated or any other desired position. The weighted arms 4 are so arranged that they'will stand in a horizontal position, and the weights thereon will exert the greatest force to stretch the bolster w taut when the cylinderj is midway between the supported ends of the bolster, as indicated by dotted lines on Fig. 1. By means of this arrangement as the cylinder approaches the middle of the bolster and more easily flexes it away from its normal lposition the tension u'pon the bolster is increased, so that a hide spread thereon will be held with approximatelyv uniform force against the blades of the cylinder j as it moves up and down over the bolster The iiexible bolsterl and variable-tension device being among the most essential features of the machine herein shown and described maybe employed to advantage in machinesditfering in other respects from that herein'shown and'described' for performing various operations upon hides, and I do not wish to be understood as limiting myself to their use in connection with any particular construction and arrangement of other parts, except in those claims which expressly include such limitations. For example, such a bolster may be movably mounted and employed with a hide-working cylinder that is stationarily mounted, or the bolster may be used in connection with a cylinder which is arrangedto travel in a rectilinear instead of a curved path. In short, various changes in the construction and arrangement of. Parts may be made and various parts omitted or added within the spirit andintended scope of the invention. r

I claim- 1. In a hide-working machine the combination of a rotary cylinder and a iiexible bolster, one of which is movable with relation to the other, means for moving one with relation to the other transversely to the axis of -the cylinder, means for rotating said cylinder and means for increasing the tension on the bolster as the middle of the bolster andthe cylinder approach each other, substantially as described.

` 2. In a lhide-working machine the combination of a rotary cylinder movable transversely to its axis, a flexible bolster yieldingly stretched in the 'path of said cylinder, and means for moving said cylinder lengthwise of the bolster, substantially as described.y

3. In a hide-working machine the combination of a rotary cylinder movable transversely to its axis, a Iiexible bolster yieldingly stretched in the path of said cylinder, means for moving said cylinder lengthwise along said bolster, and means for increasing the tension on said bolster as the cylinder approaches the middle of the bolster, substantially as described.

' 4. In a hide-working machine the combination of a flexible bolster stretched `in"an inclined position,a rot-ary cylinder movable transversely to its axis lengthwise of said bolster, means for rotating said cylinder and means for moving it transversely to -its axis along the bolster, substantially as described. 5. In a hide-working machine the combination of a flexible bolster stretched in' an inclined position, a rotary cylinder movable transversely to its axis lengthwise of said bolster, a sprinkler arranged to deliver water to the upper end of the bolster, means for rotating said cylinder and means for moving it transversely to its axis along the bolster, substantially as described.

6. In a hide-working machine the combination of a swinging frame, a rotary hide-working cylinder mounted in said-frame parallel with the axis about which it swings, a flexible bolster stretched in the path of said cylinder between supports which are .parallel with the cylinder and one of which is capable IOO IIO

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of yielding toward the other, means for rotating said cylinder and swinging it back and forth against and lengthwise of said bolster, and means for increasing the tension on the bolster as the cylinder approaches the middle unsupported portion thereof, substantially as described.

7. In a hide-working machine the combination of a swinging fratrie, a rotary hide-working cylinder mounted in said frame parallel with the axis about which it swings, a flexible bolster stretched in the path of said cylinder between supports which are parallel with the cylinder' and one of which is capable of yielding toward the other, means for rotating said cylinder and swinging it back and forth against and lengthwise of said bolster, and a weighted lever connected with the yielding bolster-support and arranged to approach a horizontal position as the cylinder approaches the middle unsupported portion of the bolster, substantially as described.

S. In a hide-working machine the combination of a swinging frame, a rotary hide-working cylinder mounted in said frame parallel with the axis about which it swings, a flexible bolster stretched in an inclined position below and in the path of said cylinder, and means for rotating said cylinder and swinging it back and forth against and lengthwise of said bolster, substantially as described.

9. In a hide-working machine the combination of a swinging frame, a rotary hide-working cylinder mounted in said frame parallel with the axis about which it swings, a ilexible bolster stretched in an inclined position below and in the path of said cylinder, a sprinkler located over the upper end of said bolster, and means for rotating said cylinder and swinging it back and forth against and lengthwise of said bolster, substantially as described.

10. In a hide-working machine the combination of a swinging frame, a rotary hideworking cylinder mounted in said frame parallel with the axis about which it swings, a llexible bolster stretched in an inclined position below and in the path of said cylinder between supports which are parallel with the cylinder and one of which is capable of yielding toward the other, means for clamping a hide to the upper end of the bolster, a sprinkler located over the upper end of the bolster, means for rotating said cylinder and swinging it back and forth against and lengthwise of the bolster, and means for increasing the tension on the bolster as the cylinder approaches the center thereof, substantially as described.

11. In a hide-working machine the combination of a swinging frame, a rotary cylinder carried by said frame and provided with blades or Scrapers for removing hair or other lnatter from hides, a flexible bolster adapted to support a hide and hold the same with a yielding pressure against the blades or Scrapers of said cylinder, and means for rotating said cylinder and swinging it back and forth lengthwise of said bolster, substantially as described.

l2. In a hide-working machine the combination of a rotary cylinder provided with blades or Scrapers for removing hair or other matter from hides, a swinging frame carrying said cylinder, a flexible bolster adapted to supporta hide in position to be operated upon by said cylinder and attached at opposite ends parallel with said cylinder to supports one of whichis capable of yielding toward the other, and means for rotating said cylinder and swinging it back and forth lengthwise of the bolster, substantially as described.

13. In a hide-working machine the combination of a stationary frame, a swinging frame mounted thereon, a cylinder carried by said swinging frame and provided with blades or Scrapers for removing hair or other matter from hides, a flexible bolster attached at one end to the stationary frame parallel with said cylinder, and at the other end to a parallel support yieldingly connected with the station- 4ary frame, a clamping device for holding a hide in place on said bolster, and means for rotating said cylinder and swinging it back and forth over said bolster, substantially as described.

14. In a hide-working machine the combi- .nation of a stationary frame, a driving-shaft supported horizontally in said frame, a sleeve mounted on said driving-shaft and capable of turning independently thereof, a rotary cylinder carried parallel with said sleeve by arms fixed thereon, a flexible bolster supported by its opposite ends parallel with and in the path of said cylinder, a clamping device for holding a hide to said bolster, and a cam on said sleeve for closing said clamp, substantially as described.

l5. In a hide-working machine the combination of a driving-shaft, a frame adapted to swing on an axis concentric with said drivingshaft, a rotary cylinder carried by said frame parallel with the driving-shaft and provided with blades or Scrapers and with a sprocketwheel which is connected by a link belt with a sprocket-wheel on the driving-shaft, a yielding flexible bolster adapted to support a hide in the path of said cylinder, and means for swinging said cylinder-frame back and forth lengthwise of said bolster, substantially as described.

16. In a hide-working machine the combination of a swinging frame, a rotary cylinder carried by said frame parallel with the axis ou Which it swings and provided with blades or Scrapers, a flexible bolster yieldingly supported in the path of said cylinder, a rocking frame arranged to swing on an axis parallel with that on which the roller-frame swings and provided with a cross-bar which is parallel with its axis and adapted to clamp a hide to said bolster, and a cam mounted on the swinging cylinder-frame and adapted by engagement with said rocking frame to force IOO and hold the clamping-bar against the bolster when said cylinderis advanced over the bolster, said cylinder-frame being constructed and arranged to move the clam ping-bar away from the bolster when thecylinder is moved back to its startingpoint, substantially as described.

17.. In a hide-working machine the combination of a driving-shaft, a frame adapted to swing on an aXis concentric with said shaft and provided with bevel-gears, a rotary cylinder carried by said frame parallel with its aXis and having an actuating connection with said shaft, a flexible bolster yieldingly supported in the path of said cylinder,`a connter-shaft parallel with the driving-shaft provided with worms and having reversing-gear connections with said driving-shaft, and connected worm-gears and beVel-pinions mounted on shafts transverse to said driving and counter shafts and meshing respectively With the worms on said counter-shaft and with the bevel-gears on the swinging roller-frame, substantially as described.

18. In a hide-working machine the combination of a swinging frame, a rotary cylinder carriedby said frame parallel with the aXis on which it swings, an independently-rotating driving-shaft concentric with said aXis, gearing for connecting said driving-shaft and swinging frame and moving the latter in either direction, means for manually connecting said gearing to swing said frame in either direction, and means for automatically disconnecting said gearing to stop said swinging frame at the proper limit in each direction,

.its of the movement of said swinging frame, and a fieXible bolster arranged in the path ofA said cylinder, substantially as described.

In witness whereof I hereto affix my signature in presence of two witnesses.

NICOLAUS LEIDGEN. Witnesses:

CHAs. L. Goss, ALICE E. Goss. 

